Jamaica’s Usain Bolt, 29, ran 9.81 seconds in his final Olympics to replicate his success at Beijing 2008 and London 2012.

Bolt became the first athlete to win three Olympic 100m titles by beating American Justin Gatlin to gold at Rio 2016.

Gatlin, twice banned for doping offences, finished 0.08 seconds behind Bolt to take silver.

“I expected to go faster, but I’m happy that I won,” Bolt told media. “I’m here to perform. I did what I had to.”